Machine for polishing hollow articles.



J. l. HOLCOMB & J/l. ANDERSON.

MACHINE FOR POLISHING HOLLOW ARTICLES.

APPLICATION FILED JULY I6. 1914.

Patented Dec. 19, 1916.

INVENTOR.

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WITNESSES:

JAMES I. HOLCOMB AND JESSE I. ANDERSON, OF INDIANAPOLIS, INDIANA; SAID ANDERSON ASSIGNOR TO SAID HOLGOMB.

MACHINE FOR POLISHING HOLLOW ARTICLES.

Specification of Letters Patent.

Patented Dec. 19, 1916.

To all whom it may concern Be it known that we, JAMEs I. I-IoLcoMB and Jnssn I. ANDERSON, citizens of the United States, and residents of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Machine for Polishing Hollow Articles; and we do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like letters refer to like parts.

This invention relates to certain new and useful improvements in machines for polishing hollow articles, such as cuspidors, whereby the machine may be readily movable so that the articles to be cleaned need not be carried to the machine.

Another feature of this invention is the means on the machine for supporting and clamping the article to be cleaned in position.

The full nature of the invention will be understood from the accompanying drawings and the following description and claim:

In the drawings, Figure 1 is a perspective View of the device. Fig. 2 is a central longitudinal vertical section thereof. Fig. 3 is a plan view of the plate for supporting and rotating the cuspidor. Fig. 4 is a section on the line 4.l of Fig. 3. Fig. 5 is av vertical central section through the lower end of the interior holding means. Fig. 6 is a section on the line 66 of Fig. 2. Fig. 7 is a section on the line 7-7 of Fig. 6. Fig. 8 is a modified form showing the cuspidor supporting means in elevation with the brush thereon for polishing the cuspidor. Fig. 9 is a diametrical section through another modified form of cuspidor support. Fig. 10 is a section on the line 1.0-10 of Fig. 9. Fig. 11 is the same as Fig. 10, with the clamping parts in actuated position.

In detail there is shown herein a plat form 10 supported upon three casters 11 and with one end of said platform 10 reduced so that the operator can sit upon it and astride it. Upon the other end of the platform 10 an electric motor 12 is mounted and about midway of the platform there is a metal plate 13 secured with an upwardly projecting standard 14 having a vertical guide head 15 on its upper end. A casing 16 incloses the lower part of the structure just described, being on the platform and having hinged lids 17, as shown in Fig. 1.

The metal plate 13 has a bearing 20 for the lower end of a Vertical shaft 21 which carries on its upper end a horizontally disposed disk or plate 22 which supports and rotates a cuspidor 23. There is a pulley 2 1 on said shaft 21 driven by a belt 25 from the motor 12. The plate 22 has radial slots 28 through which clamps 29 project for engaging the lower flange of the cuspidor, and wing nuts 30 are on said clamps which secure them in position. A cuspidor is centrally placed on the plate 22 and the three clamps shown are moved up against the base of the cuspidor and clamped in position.

- deans is provided that is insertible within the cuspidor to bear down upon the bottom thereof and clamp the cuspidor down upon the plate 22 and thus prevent the upward escape of the cuspidor. This means has a rotary head on a stem or rod 36 which slides through the head 15 on the upright 14:, and there is a handle 37 on the upper end of the rod 36. The lower end of the rod 36 is reduced in diameter and projects through a ball bearing 38 which rests upon a cushion 39 made of rubher or like yielding material and then the reduced portion of the rod 36 extends through the central portion of the interior holder 35 into a recess 40 in the underside thereof where a washer ll and cotter pin 12 are used for securing the holder on the rod. The rod 36 is secured when adjusted in the head 15 by an eccentric 4:4 with its spindle mounted horizontally in the head 15 and having a hand wheel a3 thereon.

In operating the machine the operator sits astride the small end of the platform 10 and holds a rag or other polishing means against the outer and upper surfaces of the cuspidor while it revolves.

In the modified form shown in Fig. 8, the rotary disk 22 carries a brush plate upon it clamped in place by the clamps 29 and carrying a brush 56. Then as the brush rotates, the cuspidor is held against the brush by the operator. In this modified form the interior holder and associated parts are not needed.

A modified form of means for clamping the cuspidor is shown in Figs. 9 and 10 and 11. The cuspidor support 22 has non-radial slots 60 through which the clamps 29 project, said clamps are secured on the underside to bars 61 and the bars 61 are pivoted to corresponding arms 62 of a rotary member 63 centrally located so that when said rotary member is given a rotary movement in one direction, the clamps will all be drawn toward the center and when moved in the opposite direction, they will be forced away from the center, by centrifugal force, so as to grasp or release cuspidors of various sizes. There are also weighted arms 64: which acts to steady the disk in its rotation and a clamping means consisting of a radial screw rod 65 extending from the rotary member 63 and screwing into a sleeve 66 which acts against a brake shoe 67 adapted to engage and clamp against the leather lining 68 on the interior of the downwardly extending flange of the cuspidor support 22, for stopping the rotation of the disk after the power has been shut ofl', see Figs. 9 and 10.

While this invention has been made with particular reference to use in cleaning cuspolishing member 56. And likewise the structure shown in Figs. 1 and 2 may be used for polishing and bufling other articles besides cuspidors.

The invention is: V

A machine for polishing articles, comprising a movable platform having rollers thereon, an upright mounted on the platform, vertically alined bearings carried by the upright, a spindle mounted in the lower bearing, a disk carried by said spindle, means carried by the platform for driving said disk, article clamping arms carried by the disk, a vertically slidable rod, mounted in the upper bearing, an enlarged head journaled on the lower end thereof for engaging the article and preventing its upward movement, and thrust bearings associated with said rod and head, and means on said upright for securing said rod in position.

In witness whereof, We have hereunto affiXed our signatures in the presence of the witnesses herein named.

JAMES I. 'HOLCOMB. JESSE I. ANDERSON. Witnesses:

R. G. LooKwooD, J. H. WELLS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

